Alaska Airlines Cheap Flights from Seattle to Ontario

Find The Best Day To Fly from Seattle to Ontario

Amazing Alaska Airlines SEA to ONT Flight Deals

The cheapest flights to Los Angeles - Ontario Intl. found within the past 7 days were $112 round trip and one way. Prices and availability subject to change. Additional terms may apply.

ONT From SEA Economy Coach Packages on Similar Airlines

Ontario Airport Hotel & Conference Center
Hotel Seville
Green Tree Inn
Don't see what you're looking for?
See all available trips from Seattle - Tacoma Intl. to Los Angeles - Ontario Intl.
View all trips

FAQs about Alaska Airlines Flights from SEA to ONT

Can I catch a flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) right now?

It's always wise to learn about any quarantine requirements and travel advice reports in effect in your destination. Be sure to check out the Covid-19 Travel Advisor for up-to-date information on booking a flight to Ontario, CA (ONT-Los Angeles - Ontario Intl.) from Seattle, WA (SEA-Seattle - Tacoma Intl.).

If I am not able to travel due to COVID-19, can I change my booking to a later date?

For more info about changing your flight to Ontario, CA (ONT-Los Angeles - Ontario Intl.), please visit our Customer Service Portal.

Which airlines offer COVID-19 measures and exercise social distancing rules?

Southwest Airlines, American Airlines and Delta are just some of the many carriers that employ COVID-19 measures and use social distancing rules on their flights. Some of their strategies are cleaning with disinfectant and providing passenger masks.

What is the best day to buy a plane ticket?

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2020. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Sunday, as data shows the end of the week is when prices are generally at their highest.

What are the cheapest days to fly?

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2020, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

How far in advance can you book a flight?

Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2020 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2 weeks to 2 months prior to their travel dates.

How can I save money on airline tickets?

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2020 saved nearly 40% when their return flights consisted of two different airlines or fare types.

*According to flight demand on Travelocity.com from January to December 2020. Savings are subject to change based on departure location, date and destination.

CarrierFlightDepart SEAArrive ONTSun
12/5
Mon
12/6
Tue
12/7
Wed
12/8
Thu
12/9
Fri
12/10
Sat
12/11
Stops
AS53706:00 am08:30 amCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
-
0 Stops
AS102911:20 am01:50 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
AS91805:31 pm08:02 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
AS92409:25 pm11:56 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops

Discover our best Alaska Airlines flight from Seattle SEA to Ontario ONT 

To find the best deals on flights to Seattle from Ontario with Alaska Airlines, just enter your travel dates, filter by Alaska Airlines, and hit search. You’ll find 3 flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Seattle SEA to Ontario ONT with Alaska Airlines 

If you’re planning a round trip, booking return flights with Alaska Airlines is usually the most cost-effective option. With airfares ranging from $112 to $223, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way Alaska Airlines flights from Seattle SEA to Ontario ONT 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way Alaska Airlines flight from Seattle to Ontario costs from . Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Ontario ONT from  Seattle SEA with Alaska Airlines 

To find a cheap Alaska Airlines flight from Seattle SEA to Ontario ONT, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on Alaska Airlines flights from Seattle SEA to Ontario ONT 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as January, or if you book a flight with a stopover. 

 

Find nonstop flights from Seattle SEA to Ontario ONT with Alaska Airlines 

If you’re keen to be on Ontario soil fast, don’t waste time with a stopover—filter your search results to show direct Alaska Airlines flights only. The journey takes around 2 hour(s) 30 min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for Alaska Airlines flights from Seattle SEA to Ontario ONT 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Ontario ONT from  Seattle SEA with Alaska Airlines on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

Alaska Airlines Airports
Hop on a(n) Alaska Airlines flight today by flying to many destinations out of these domestic and international airports:
Airport Code
Country
Airport Name
Number of Flights
SEAUSASeattle - Tacoma Intl.115
ORDUSAO'Hare Intl.44
LAXUSALos Angeles Intl.24
PDXUSAPortland Intl.23
ANCUSATed Stevens Anchorage Intl.22
SFOUSASan Francisco Intl.21
SANUSASan Diego Intl.18
JNUUSAJuneau Intl.10
SJCUSANorman Y. Mineta San Jose Intl.10
GEGUSASpokane Intl.7

Travelers ❤️ these 🏨 after their flight to Ontario

SureStay Hotel by Best Western Ontario Airport
SureStay Hotel by Best Western Ontario Airport
2.5 out of 5
3201 East Centrelake Drive, Ontario, CA
The price is $99 per night from Dec 13 to Dec 13
An outdoor pool, free self parking, and free newspapers are featured at this hotel. Guests will appreciate perks like free WiFi and a free airport shuttle. A ...
3.6/5 Good! (10 reviews)
"nothing unique good location"

Reviewed on Aug 5, 2021

SureStay Hotel by Best Western Ontario Airport
Ontario Airport Hotel & Conference Center
Ontario Airport Hotel & Conference Center
3.5 out of 5
700 N Haven Ave, Ontario, CA
The price is $119 per night from Dec 26 to Dec 26
This hotel features an outdoor pool, a 24-hour gym, and a restaurant. Traveling on business? Take advantage of the 16 conference rooms, as well as the 24-hour ...
3.8/5 Good! (18 reviews)
"It was fine."

Reviewed on Oct 16, 2021

Ontario Airport Hotel & Conference Center
Embassy Suites Ontario Airport
Embassy Suites Ontario Airport
3.5 out of 5
3663 E Guasti Rd, Ontario, CA
The price is $135 per night from Dec 19 to Dec 19
This hotel features an indoor pool and a 24-hour gym. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public areas, and free ...
4.2/5 Very Good! (12 reviews)
"One of the best 👌"

Reviewed on Sep 15, 2021

Embassy Suites Ontario Airport
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.